Home / 12,695.28-19,060.85-8,000.07

Finding the Fourth Proportional to 12,695.28, 19,060.85 and 8,000.07

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Solution

The fourth proportional to 12,695.28, 19,060.85 and 8,000.07 is: 12,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,695.28 : 19,060.85 = 8,000.07 : x
  2. Step 2: Convert to fraction form
    12,695.28/19,060.85 = 8,000.07/x
  3. Step 3: Cross multiply
    12,695.28x = 19,060.85 × 8,000.07
  4. Step 4: Simplify right side
    12,695.28x = 152,488,134.26
  5. Step 5: Solve for x
    x = 152,488,134.26/12,695.28
  6. Step 6: Final answer
    x = 12,011.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.